Safety-stop for mine-cars.



S. VERBITSKY.

SAFETY STOP FOR MINE CARS.

APPLICATION FILED IAN. 29.19I8. I 1,269,983. Patented June 18, 191&

a SHEETS-SHEET 1.

IIVVENTOR Simon Verbitsky,

A TTOBWEY l/VVE/VTUR Simon T rbifslg By 4cm w ATTORNEY Patented June 18,19l&

3 SHEETS-SHEET 2- S. VERBITS KY.

SAFETY STOP FOR MINE CARS.

APHICATION FILED 1AN. 29. 191a.

Patented June 18, 1918.

INVENTOR' Simon verwsk fan @i ATTORNEX 1 SIMON VERBITSKY, OF ST.CLAIR,'ZPENNSYLVANIA.

SAEETY-STOP FOR MINE-CARS.

Specification of Letters Patent. Patented J 119, 18, .1918,

Application filed January 29, 1918. Serial No. 214,297.

To all whom it may concern:

Be it known that I, SIMON VERBITsKY, a citizen of the United States,resident of St. Clair, county of Schuylkill, and State of Pennsylvania,have invented certain new and useful Improvements in Safety-Stops forMine-Cars, of which the following is a specification.

This invention relates to improvements in safety stops for carstraveling upon inclined surfaces.

The principal object of the invention is to provide devices which may bereadily attached to cars of ordinary construction, whereby they areprevented from running by gravity down an inclined surface, shouldcontrol of the haulage cable become lost.

A further object is to provide means, should the car become unmanageableby reason of its rapid descent, for causing the car to stop, and alsofor preventing the end to which the power is normally applied fromrising with respect to the opposite end.

These and other like objects are attained by the novel construction andcombination of parts hereinafter described and shown in the accompanyingdrawings, forming a material part of this specification, and in which,

Figure 1 is a top plan view showing a car made in accordance with theinvention.

Fig. 2 is a side elevational View of the same, the arms being shown inan engaged or stopping position.

Fig. 3 is a rear plan view of the same.

Fig. 4 is a side elevational view showing the arms in a normal positionfor the car to operate, and

Fig. 5 is a perspective view of the car and its attachments.

In the drawings, a pair of rails 10, supported by sleepers 11, form atrackway, particularly of such types as used in a mine, while overheadare rails 12 to which are attached cross strips 13, the same beingsubstantially parallel with the rails 10 and uniformly spacedthereabove. Movable over the rails 10, is a car 15, the same here shownto be of conventional type, mounted upon wheels 14, engaging with therails, the car having side frame bases 16 from which rise corner posts17 and 18, and a center post 19.

Engaged between the front posts 17, is a bar 26, to which is attachedthe hauling cable 22,- by means of which the ear is drawn up the inclineor allowed to descend, under control, by gravity. The bar 20 is engagedat its ends by braces 23, rigidly secured to the center post 19, so asto forma stable structure. The base beams 16, have their rear ends 26,extended somewhat beyond the rear of the car and mounted upon them arebrackets 27, in which is journaled a shaft 28, having rigidly securedupon itthe hubs 29, of levers 30, terminating in toothed heads 31,standing normally erect. Similar levers 32, having heads 33, are securedpendently by their hubs 34, to a shaft 35, mounted in brackets 36,extending from the upper rear corners of the car.

Also engaged with the shaft 35, are segmental plates 38, to which arepivotally attached the ends of links 40, the lower opposite ends ofwhich are connected pivotally to the levers 30, so that as the latterare turned outwardly, the segment plates are caused to rotate partially,holding the levers 32 outwardly in an obvious manner, the links 40serving to connect the shafts 28 and 35 so as to operate synchronously.Formed through the segment plates 38,'are arcuate slots 42, in which areslid'a'bly received bolts 43, the same connecting with link rods 44, theopposite front ends of which are pivotally engaged with levers 46,secured upon a shaft 47, j ournaled in brackets 49, at the upper frontcorners of the car. On this shaft are secured levers50 having acorrugated heads 51, at their extending ends,

like those previously described.

Motion is communicated to the several levers by means of the spring 54,coiled around the shaft 28, so asto cause the levers .to extendoutwardly and rearwardly at such times as they are free to act. Thismovement is normally prevented however, by means of chains 55, connectedwith cross arms 56, engaged with the sleeve 58, fixed on the cable 22,the chain passing alongside the car 15, in tubular rails 59, and areattached at their extreme rear ends to eyes formed in the levers 30.

From the foregoing it will be evident that should the cable 22 be brokenor become loosened, the chain is slackened, causing the lever 30 to turnoutward, and by reason of the links 40 the upper levers 32 are drawn up,the springs 54 acting to throw the levers 30 out and cause them toengage with the ties 11 upon which the track rails are secured and thelevers 32 to rise, engaging with the cross ties 13 secured to the roofof the mine, thereby holding the car.

In order to prevent the front part of the car from rising, due to asudden stop, the levers 50 are raised through the action of the links44, but as the levers 50 are normally horizontal, less movement isconveyed to them, hence the use of the slots 42, in the segments 38, thesame being so arranged that the levers 50 are raised co-incidently, tocontact with the upper ties 13, by contact with the bolts 43 at the endsof the slot, the two positions being clearly seen in Figs. 2 and 4respectively.

From the foregoing it will be seen that a system of levers is providedwhich will bring a car to an instant stop should, by accident orotherwise, the haulage cable be slaclrened sufliciently for the springs54 to operate, and that the device can be readily applied to cars ofpresent construction or provided in new installations.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is,

1. In a safety stop for mine cars, the combination with a trackway, acar movable thereon, and a haulage cable engaged with said car, of anoverhead track substantially parallel with the track over which the cartravels, levers hingedly engaged at the rear of said car at the top andbottom thereof, the lower levers being capable of engaging with the maintrack, and the upper levers with the overhead track, springs operativelyengaged with said levers whereby they are extended outwardly intoengagement with the main tracks and the overhead track simultaneously,and means engaged with said cable whereby said levers are held normallyout of operative position.

2. In a safety stop for inclined railways, the combination with atrackway, a plurality of cross strips arranged above said trackway,parallel therewith, a car movable on said trackway, and a haulage cableengaged therewith, of a pair of levers pivotally engaged with said carat the lower rear corners thereof, adapted to engage with said trackwaywhen extended, a second pair of levers engaged with the upper rearcorners of said car adapted to engage with said Copies of this patentmay for holding. said levers closely adjacent to said tracks saidholding means being engaged with said cable in such manner that shouldsaid cable become loosened, said holding means will operate all of thesaid levers.

3. In a safety stop, the combination with an inclined railway, aplurality of transversely disposed strips, arranged above said railway,a car movable on said railway, below said strips, a cable engaged withsaid car, levers pivotally attached at the rear of said car normallyadjacent thereto, means for extending said levers upon slackening of thecable, levers pivotally arranged at the front end of said car, saidlevers being contactable with said strips, and connections between bothpairs of said levers whereby they are operated in unison.

at. In a safety stop for inclined railways,-

the combination with a trackway, a plurality of transverse stripsarranged thereabove parallel to said trackway, a car operatable on saidtrackway and below said strips, and a haulage cable attached to saidcar, of a pair of levers hingedly engaged at the lower rear portion ofsaid car, said levers having ends adapted to contact with said trackway,a second pair of levers engaged at the upper rear portion of said car,said levers being engageable with said transverse strips, connectionsbetween the first and second named levers whereby they are operated inunison, means for normally holding the levers closely adjacent to theends of said car, a third pair of levers hingedly engaged at the frontupper ends of said car, said third levers having a head engageable withsaid transverse strips, link connections between said second and thirdpair of levers, means whereby said third pair of levers are given alesser motion than said second pair of levers, and flexible connectionsbetween the first named pair of levers and said cable, said flexibleconnections being so arranged that should the cable be loosened all ofsaid levers will operate to stop said car.

In testimony whereof I have affixed my signature.

SIMON VERBITSKY.

be obtained for five cents each, by addressing the Commissioner ofIatento.

Washington, D. G.

